5.0.13 vs 5.2.7
We have an FG600C, part number P08908-02, BIOS revision 04000023, currently running 5.0.12. We RMA'd our last FG600C because of an issue with whatever older BIOS it had that caused the unit to lock up during operation, and not boot after a graceful reboot, necessitating a hard reboot. The new unit, running 5.0.12, hasn't locked up, but it did have the symptom of all interfaces showing as up on the GUI, and the throughput of each interface showing astronomical amounts. A graceful reboot solved the issue... for now.
I'd really like to do whatever upgrade will ensure reliability. I like the fact that 5.0.13 just came out and the release notes state "no bugs." But is the BIOS still an issue? I'm scared of 5.2 but I'd like to think that enough bugs have been worked out in 5.2.7, and the known issues in the release notes don't seem to be a deal breaker.
FortiNet support recommended upgrading to 5.2.6 several weeks ago and the boss hasn't approved any upgrade yet, but I figured I'd ask you all for real-world experience.
Thanks for any advice you can give!